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难处理含锑金精矿高效回收金锑试验研究
- 作者：
孙仁锋，邵京明，李少梅，郭建东*，薛希刚
- 作者单位：
- （山东国大黄金股份有限公司）
基金项目：
- 山东省重点研发计划（重大科技创新工程）项目（2023CXGC010903）
详细信息：
- 作者简介：
- 孙仁锋（1984—），男，工程师，从事选矿及冶炼等方面的研究工作；E⁃mail：Sunrenfeng128@163. com
- PDF下载
Experimental study on efficient recovery of gold and antimony from refractory gold concentrate containing antimony
- English Author：
Sun Renfeng, Shao Jingming, Li Shaomei, Guo Jiandong, Xue Xigang
- Unit：
- （Shandong Guoda Gold Co., Ltd.）
- 摘要
- 在线预览
- 参考文献
摘要:
某难处理含锑金精矿含金 43.70 g/t、锑 15.60 %，直接采用氧化焙烧—氰化浸出工艺处理，金浸出率仅为 82.42 %，且有价金属锑未得到有效回收。通过试验研究，确定采用含锑金精矿浮选—浮选尾矿碱浸—浸锑尾渣两段焙烧—焙烧渣氰化浸出—烟气制酸工艺流程；浮选获得金品位 32.00 g/t、锑品位 41.50 %，金、锑回收率分别为 23.98 %、87.12 %的锑精矿；浮选尾矿碱浸锑浸出率为 96.17 %；金、锑总回收率分别达到 97.69 %和 99.51 %，实现了难处理含锑金精矿资源有价元素金、锑的高效综合回收。
关键词:
含锑金精矿；氧化焙烧；氰化；浮选；锑精矿；碱浸；综合回收
Abstract:
A certain refractory gold concentrate containing antimony, with 43.70 g/t gold and 15.60 % antimony,was directly treated using an oxidative roasting-cyanidation leaching process, yielding a gold leaching rate of only82.42 %, and the valuable metal antimony was not effectively recovered. Through experimental research, an optimizedprocess was established comprising flotation of the antimony⁃bearing gold concentrate, alkaline leaching of theflotation tailings, two⁃stage roasting of the antimony leaching residue, cyanidation leaching of the roasted residue, andacid production from flue gas. The flotation yielded an antimony concentrate with 32.00 g/t gold and 41.50 % antimony,achieving recovery rates of 23.98 % for gold and 87.12 % for antimony. The antimony leaching rate from flotationtailings reached 96.17 %. The overall recovery rates of gold and antimony were 97.69 % and 99.51 %, respectively,realizing the efficient comprehensive recovery of valuable metals, including gold and antimony, from refractory goldconcentrate containing antimony.
Keywords:
gold concentrate containing antimony; oxidative roasting; cyanidation; flotation; antimony concentrate;alkaline leaching; comprehensive recovery
